viveksb007

GSoC 2017 Work Product, Vivek Singh Bhadauria - FOSSASIA

This summer, I worked on FOSSASIA's Pocket Science Lab Android App that exposes the various functionalities like Oscilliscope, Programmable Voltage and Current Source, etc of PSLab Hardware Device. It can be used to perform various experiments ranging from school level to engineering.
I added some additional functionalities like In-built oscilloscope and Wave Generation (WIP) using Audio Jack as data interface in Android.

Users need the following things to test app:

• Android Device which supports USB-Host mode (most modern devices do).
• OTG Cable
• PSLab Hardware Device (for core functionalities and performing experiment)
• Some add-on sensors like MPU6050, BMP180, etc. (for real-time data from sensors)

viveksb007

from flask import Flask, jsonify, request, Response
import json

app = Flask(__name__)

@app.route('/response', methods=['GET'])
def api_response():
   data = {
       'data': 'test data',
       'id': 1

viveksb007

from flask import Flask, jsonify

app = Flask(__name__)

@app.route('/', methods=['GET'])
def index():
   return jsonify({
       'author': 'Vivek Singh Bhadauria',
       'author_url': 'http://viveksb007.wordpress.com/',
       'base_url': 'zeolearn.com/',

viveksb007

from flask import request

@app.route('/check, methods=['GET', 'POST', 'PUT', 'DELETE'])
def check():
   if request.method == 'GET':
       return "REQUEST TYPE: GET"

   elif request.method == 'POST':
       return "REQUEST TYPE: POST"

viveksb007

from flask import Response
import json

@app.route('/response', methods=['GET'])
def api_response():
   data = {
       'data': 'test data',
       'id': 1
   }
   js = json.dumps(data)

viveksb007

@app.route('/magazines/photos/<number_of_images>', methods=['GET'])
def get_image_links(number_of_images):
   image_list = []
   # Code for scraping zeolearn magazine section and appending links in image_list
   response = requests.get('https://www.zeolearn.com/magazine/')
   soup = BeautifulSoup(response.text, 'html.parser')
   for tag in soup.find_all('img'):
       image_list.append(tag['src'])
   image_data = {}
   if int(number_of_images) < len(image_list):

viveksb007

from flask import json

@app.route('/messages', methods = ['POST'])
def api_message():

    if request.headers['Content-Type'] == 'text/plain':
        return "Text Message: " + request.data

    elif request.headers['Content-Type'] == 'application/json':
        return "JSON Message: " + json.dumps(request.json)

viveksb007

curl -H "Content-type: application/json" -X POST http://127.0.0.1:5000/messages -d '{ "message" : "Test Data" }'

viveksb007

from flask import Flask, request, jsonify
from flask_httpauth import HTTPBasicAuth
from flask_sqlalchemy import SQLAlchemy
import datetime

app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:////tmp/test.db'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = True
db = SQLAlchemy(app)
auth = HTTPBasicAuth()

viveksb007

class User(db.Model):
   id = db.Column(db.Integer, primary_key=True)
   username = db.Column(db.String(80), unique=True, nullable=False)
   password = db.Column(db.String(20), nullable=False)
   email = db.Column(db.String(100), unique=True, nullable=False)

   def __init__(self, username, password, email):
       self.username = username
       self.password = password
       self.email = email